Arachnoidiscus barbadensis Schmidt in Schmidt et al., 1881 (original description)
Arachnoidiscus ehrenbergii sensu A. Schmidt in Schmidt et al., 1881 (original description)
Arachnoidiscus ehrenbergii var. californicus Schmidt in Schmidt et al., 1881 (original description)
Arachnoidiscus ehrenbergii var. evanescens Grunow in Schmidt et al., 1882 (original description)
Arachnoidiscus ehrenbergii var. montereyana Schmidt in Schmidt et al., 1881 (original description)
Aulacodiscus caelatus var. auklandicus Grunow in A. Schmidt (original description)
Auliscus biddulphia var. biddulphia Kitton in Schmidt et al., 1881 (original description)
Auliscus caelatus f. major Schmidt in Schmidt et al., 1881 (original description)
Auliscus caelatus var. auklandica Grunow in A. Schmidt et al., 1881 (original description)
Auliscus caribaeus Cleve ex Schmidt in Schmidt et al., 1881 (original description)
Auliscus joynsonii Schmidt in Schmidt et al., 1881 (original description)
Cocconema arcticum (Lagerstedt) Schmidt, 1881 (new combination reference)
Cocconema cistula var. maculata (Kützing) Grunow, 1881 accepted as Frustulia maculata Kützing, 1833 (new combination reference)
Cocconema helvetica (Kützing) Schmidt, 1881 accepted as Cymbella helvetica Kützing, 1844 (new combination reference)
Cocconema janischii Schmidt in Schmidt et al., 1881 † (original description)
Coscinodiscus fimbriatus Schmidt in Schmidt et al., 1881 (original description)
Coscinodiscus subvelatus Grunow in Schmidt et al., 1881 (original description)
Craspedodiscus coscinodiscus var. nankoorensis Grunow in A. Schmidt, 1881 (original description)
Craspedodiscus insignis Schmidt in Schmidt et al., 1881 (original description)
Craspedodiscus nankoorensis Grunow in Schmidt et al., 1881 (original description)
Craspedodiscus oblongus var. oblongus (Greville) Grunow in Schmidt et al., 1881 accepted as Porodiscus oblongus Greville, 1863 (new combination reference)
Craspedodiscus ovalis Grunow in Schmidt et al., 1881 (original description)
Craspedodiscus rhombicus Grunow in Schmidt et al., 1881 (original description)
Cymbella aequalis var. hybrida Grunow in Schmidt et al., 1881 (original description)
Cymbella americana var. acuta A.Schmidt, 1881 (original description)
Cymbella beverleiana Schmidt, 1881 (original description)
Cymbella botellus (Lagerstedt) Cleve, 1894 accepted as Cymbella variabilis var. botellus Lagerstedt, 1873 (new combination reference)
Cymbella cesatii (Rabenhorst) Grunow, 1881 accepted as Encyonopsis cesatii (Rabenhorst) Krammer, 1997 (new combination reference)
Cymbella excisa Schmidt in Schmidt et al., 1881 (original description)
Cymbella helvetica Schmidt in Schmidt et al., 1881 (original description)
Cymbella integra (W.Smith) A.W.F.Schmidt, 1881 accepted as Pinnularia integra W.Smith, 1856 (new combination reference)
Cymbella rupicola Grunow, 1881 (original description)
Cymbella semicircularis (Lagerstedt) Schmidt in Schmidt et al., 1881 accepted as Cymbella affinis var. semicircularis Lagerstedt, 1873 (new combination reference)
Encyonema ventricosum var. minuta (Hilse) Schmidt, 1881 accepted as Cymbella minuta Hilse, 1862 (new combination reference)
Encyonema yarrense Schmidt in Schmidt et al., 1881 (original description)
Endictya minor Schmidt in Schmidt et al., 1881 (original description)
Navicula beyrichiana f. beyrichiana Schmidt in Schmidt et al., 1881 (original description)
Navicula bioculata var. bioculata Grunow in Schmidt et al., 1881 (original description)
Navicula bullata var. moelleriana Janisch in Schmidt et al., 1881 (original description)
Navicula carinifera var. densius-striata Schmidt in Schmidt et al., 1881 (original description)
Navicula coffaeiformis var. subcircularis A. Schmidt, 1881 (original description)
Navicula coffeiformis var. denestriata A. Schmidt, 1881 (original description)
Navicula compar Janisch in Schmidt et al., 1881 (original description)
Navicula congrua Janisch in Schmidt et al., 1881 (original description)
Navicula crabro sensu Schmidt in Schmidt et al., 1881 (original description)
Navicula crabro var. nankoorensis Grunow in Schmidt et al., 1881 (original description)
Navicula crabro var. oranensis Schmidt in Schmidt et al., 1881 (original description)
Navicula demta Schmidt in Schmidt et al., 1881 (original description)
Navicula didyma sensu Schmidt in Schmidt et al., 1881 (original description)
Navicula didyma Schmidt in Schmidt et al., 1881 (original description)
Navicula digrediens Schmidt in Schmidt et al., 1881 (original description)
Navicula excavata var. mesoleia Grunow in Schmidt et al., 1881 (original description)
Navicula eximia var. eximia Schmidt in Schmidt et al., 1881 (original description)
Navicula expedita Schmidt in Schmidt et al., 1881 (original description)
Navicula expleta var. expleta Schmidt in Schmidt et al., 1881 (original description)
Navicula forcipata var. densestriata A.W.F.Schmidt, 1881 (original description)
Navicula forcipata var. minor Schmidt in Schmidt et al., 1881 (original description)
Navicula forcipata var. nummularioides Grunow in Schmidt et al., 1881 (original description)
Navicula forcipata var. versicolor Grunow, 1881 accepted as Navicula versicolor Grunow, 1874 (original description)
Navicula fraudulenta A.Schmidt, 1881 (original description)
Navicula grunowii f. minor Schmidt in Schmidt et al., 1881 (original description)
Navicula moesta Schmidt in Schmidt et al., 1881 (original description)
Navicula munda Janisch in Schmidt et al., 1881 (original description)
Navicula oranensis A. Schmidt (original description)
Navicula ornata var. ornata Schmidt in Schmidt et al., 1881 (original description)
Navicula oswaldii var. oswaldii Janisch in Schmidt et al., 1881 (original description)
Navicula pristiophora Janisch in Schmidt et al., 1881 (original description)
Navicula proxima Janisch in Schmidt et al., 1881 (original description)
Navicula reichardtii Grunow, 1880 (original description)
Navicula samoensis Grunow, 1877 (original description)
Navicula sandriana sensu Schmidt in Schmidt et al., 1881 (original description)
Navicula schleinitzii Janisch in Schmidt et al., 1881 (original description)
Navicula scintillans Schmidt in Schmidt et al., 1881 (original description)
Navicula scutiformis f. scutiformis Grunow in Schmidt et al., 1881 (original description)
Navicula sejuncta var. baldjikiana Schmidt in Schmidt et al., 1881 (original description)
Navicula splendida var. diplosticta Grunow accepted as Navicula diplosticta Grunow in Schmidt et al., 1875 (new combination reference)
Navicula subnuda var. densestriata Schmidt in Schmidt et al., 1881 (original description)
Navicula succincta Schmidt in Schmidt et al., 1881 (original description)
Navicula vana Schmidt in Schmidt et al., 1881 (original description)
Pseudauliscus letoniensis Janisch in Schmidt et al., 1881 (original description)
Stephanopyxis campechiana Grunow in Schmidt et al., 1881 (original description)